Event: Div 4 - Athenaeum Cup

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Opponent	Rating	Result
Matthew J Biggs	0	1 - 0
George D Boothman	1642	1 - 0
Mattiangelo D'Agnese	1582	½ - ½
Jonathan Ferguson	1626	1 - 0
Niko Abramowicz	1729	1 - 0
Matt Wardman	1634	0 - 1
Konstantin Rybalcenko	0	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1288 = (8213 + 400 * (4 - 2)) / 7)